科莱斯达CRYOSTAR(法国低温之星).ppt

CENTRIFUGAL PUMPModule 3.2 Vertical Pump Construction Main Uses are: Air separationLiquefaction plants.Various applications:Internal compressionCrude argon recyclingRe-injectionBack-up8 stagesVerticalVP 8/145/4L-3,0 C/0RemindersImpeller diameterImpeller tipwidthLabyrinthSpeed*100Material Principles Vertical pumps divided in Three parts:Cold EndWarm box or Intermediate pieceMotor Side Single and Multi stage pumps Cold box installation with thermal barrier All seal types availableCold end with direct coupled motor.Synchronous speed (50/60Hz) or variable speedVP constructionDrive shaft with coupling Shaft seals : LabyrinthMechanicalGas sealDual Gas sealTotal mass supported by mounting flangeConstruction: Warm box (Intermediate piece on VP)grease retainerchamberleak detectorcouplingheating coilOutlet of the labyrinthConstruction: Warm box (cont’d)Construction: Warm box (cont’d)Heater on motor sideConstruction: Cold endinducerdiffusorimpelleroutletventinletConstruction: Cold end (cont’d)Construction: Cold end (cont’d)。